diff options
Diffstat (limited to 'board/keymile/common/common.c')
| -rw-r--r-- | board/keymile/common/common.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/board/keymile/common/common.c b/board/keymile/common/common.c index 8392a64..4883fe5 100644 --- a/board/keymile/common/common.c +++ b/board/keymile/common/common.c @@ -42,6 +42,7 @@ static void i2c_write_start_seq(void); static int i2c_make_abort(void); +DECLARE_GLOBAL_DATA_PTR; int ivm_calc_crc(unsigned char *buf, int len) { @@ -73,6 +74,41 @@ int ivm_calc_crc(unsigned char *buf, int len) return crc; } +/* + * Set Keymile specific environment variables + * Currently only some memory layout variables are calculated here + * ... ------------------------------------------------ + * ... |@rootfsaddr |@pnvramaddr |@varaddr |@reserved |@END_OF_RAM + * ... |<------------------- pram ------------------->| + * ... ------------------------------------------------ + * @END_OF_RAM: denotes the RAM size + * @pnvramaddr: Startadress of pseudo non volatile RAM in hex + * @pram : preserved ram size in k + * @varaddr : startadress for /var mounted into RAM + */ +int set_km_env(void) +{ + uchar buf[32]; + unsigned int pnvramaddr; + unsigned int pram; + unsigned int varaddr; + + pnvramaddr = gd->ram_size - CONFIG_KM_RESERVED_PRAM - CONFIG_KM_PHRAM + - CONFIG_KM_PNVRAM; + sprintf((char *)buf, "0x%x", pnvramaddr); + setenv("pnvramaddr", (char *)buf); + + pram = (CONFIG_KM_RESERVED_PRAM + CONFIG_KM_PHRAM + CONFIG_KM_PNVRAM) / + 0x400; + sprintf((char *)buf, "0x%x", pram); + setenv("pram", (char *)buf); + + varaddr = gd->ram_size - CONFIG_KM_RESERVED_PRAM - CONFIG_KM_PHRAM; + sprintf((char *)buf, "0x%x", varaddr); + setenv("varaddr", (char *)buf); + return 0; +} + static int ivm_set_value(char *name, char *value) { char tempbuf[256]; |